Examples with PagerAdapter androidx.viewpager.widget.PagerAdapter used on opensource projects

Example 11 with PagerAdapter

use of androidx.viewpager.widget.PagerAdapter in project CloudReader by youlookwhat.

the class BigImagePagerActivity method onCreate.

@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_view_big_image);
    mViewPager = (ViewPager) findViewById(R.id.very_image_viewpager);
    // 延迟动画
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
        postponeEnterTransition();
    }
    mEnterIndex = getIntent().getIntExtra(KEY_ENTER_INDEX, 0);
    mImageUrls = getIntent().getStringArrayListExtra(KEY_IMAGE_URLS);
    if (mImageUrls == null) {
        return;
    }
    mPhotoViewMap = new SparseArray<>();
    // imageView.setLayoutParams(new ViewGroup.LayoutParams(
    // ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
    // View view = getLayoutInflater().inflate(R.layout.dialog_save_image, null);
    // 
    // AlertDialog alertDialog = new AlertDialog.Builder(BigImagePagerActivity.this)
    // .setView(view)
    // .create();
    // 
    // TextView textView = (TextView) view.findViewById(R.id.save_image_tv);
    // textView.setOnClickListener(v1 -> {
    // saveImage(pv.getDrawable(), imageUrl);
    // alertDialog.dismiss();
    // });
    // alertDialog.show();
    PagerAdapter mPagerAdapter = new PagerAdapter() {

        @Override
        public int getCount() {
            return mImageUrls.size();
        }

        @Override
        public boolean isViewFromObject(@NonNull View view, @NonNull Object object) {
            return view.equals(object);
        }

        @NonNull
        @Override
        public Object instantiateItem(@NonNull ViewGroup container, int position) {
            PhotoView photoView = new PhotoView(container.getContext());
            // imageView.setLayoutParams(new ViewGroup.LayoutParams(
            // ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
            String imageUrl = mImageUrls.get(position);
            Glide.with(BigImagePagerActivity.this).load(imageUrl).into(photoView);
            if (mPhotoViewMap.get(position) != null) {
                mPhotoViewMap.remove(position);
            }
            mPhotoViewMap.put(position, photoView);
            photoView.setOnViewTapListener((view, x, y) -> {
                onBackPressed();
            });
            photoView.setOnLongClickListener(v -> {
                PhotoView pv = (PhotoView) v;
                if (pv.getDrawable() == null) {
                    return false;
                }
                // alertDialog.show();
                return true;
            });
            if (position == mEnterIndex) {
                ViewCompat.setTransitionName(photoView, mImageUrls.get(position));
                setStartPostTransition(photoView);
            }
            container.addView(photoView);
            return photoView;
        }

        @Override
        public void destroyItem(@NonNull ViewGroup container, int position, @NonNull Object object) {
            if (mPhotoViewMap.get(position) != null) {
                mPhotoViewMap.remove(position);
            }
            container.removeView((View) object);
        }
    };
    mViewPager.setAdapter(mPagerAdapter);
    mViewPager.setCurrentItem(mEnterIndex);
    mViewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {

        @Override
        public void onPageScrolled(int i, float v, int i1) {
        }

        @Override
        public void onPageSelected(int i) {
            RxBus.getDefault().post(RxCodeConstants.JUMP_CURRENT_POSITION, i);
        }

        @Override
        public void onPageScrollStateChanged(int i) {
        }
    });
}

Example 12 with PagerAdapter

use of androidx.viewpager.widget.PagerAdapter in project wire-android by wireapp.

the class TabIndicatorLayout method setViewPager.

public void setViewPager(ViewPager viewPager) {
    if (this.viewPager != null) {
        this.viewPager.removeOnPageChangeListener(this);
    }
    this.viewPager = viewPager;
    this.viewPager.addOnPageChangeListener(this);
    PagerAdapter adapter = this.viewPager.getAdapter();
    int count = adapter.getCount();
    List<String> labels = new ArrayList<>();
    for (int i = 0; i < count; i++) {
        labels.add(adapter.getPageTitle(i).toString());
    }
    setLabels(labels);
    setSelected(viewPager.getCurrentItem());
}